Date and Time of the Query: 2019-07-23 T00:54:56 PDT
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You have selected the following parameters to search on:

Parameters for Distances and Cosmology: Ho= 73.0; Ωmatter = 0.27; Ωvacuum = 0.73;
Derived Quantities use a Redshift corrected to a Reference Frame defined by the 3K CMB

NED results for object NGC 3227

1 objects found in NED.    


 Row          Object Name                 EquJ2000.0       Object  Velocity/Redshift    Mag./  Separ.               Number of                                 Row 
 No.     (* => Essential Note)       RA               DEC  Type     km/s       z   Qual Filter arcmin Refs Notes Phot Posn Vel/z Diam Assoc Images   Spectra  No. 
1    NGC 3227                       10h23m30.6s +19d51m54s G        1157  0.003859      11.1     ...  1217    44  350   66    48    8     0 Retrieve Retrieve 1   

Detailed information for each object

Object No. 1 - NGC 3227

INDEX for NGC 3227
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Quick-Look Angular and Physical Sizes
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

350 Photometric data point(s) and SED   
Redshift-Independent Distances
1217 Reference(s)   
66 Position data point(s)
48 Redshift data point(s)   
8 Diameter data point(s)   
44 Note(s)   
UGC data    
RC3 data    


Object Names Type Object Names Type
NGC 3227G PBC J1023.5+1951 XrayS
UGC 05620 G 1WGA J1023.5+1951 XrayS
ARP 094 NED02 G XMMSL1 J102330.4+195157 XrayS
VV 209a G 2XMM J102330.5+195153 XrayS
CGCG 094-028 G 2XMMp J102330.5+195154 XrayS
CGCG 1020.8+2006 G 1XMM J102330.6+195154 XrayS
MCG +03-27-016 G 1AXG J102330+1951 XrayS
2MASX J10233060+1951538 IrS H 1019+203 XrayS
2MASXi J1023305+195154 IrS 1H 1017+202 XrayS
2MASS J10233057+1951542 IrS 1ES 1020+201 XrayS
SDSS J102330.57+195154.3 G 3A 1021+203 XrayS
IRAS 10207+2007 IrS XSS J10231+1950 XrayS
IRAS F10207+2007 IrS SWIFT J1023.5+1951 XrayS
AKARI J1023304+195201 IrS SWIFT J1023.5+1952 GammaS
KPG 234B G [dML87] 633 G
LDCE 0724 NED010 G LGG 194:[G93] 009 G
HDCE 0577 NED003 G [M98j] 086 NED03 G
USGC U300 NED03 G NGC 3227:[RW2000] X-01 XrayS
LQAC 155+019 017 G [VCV2001] J102330.6+195156 G
HOLM 187A G RX J1023.5+1951:[ZEH2003] 01 G
[BEC2010] HRS 004 G NGC 3227:[LB2005] X01 XrayS
NSA 137223 G [RRP2006] 18 G
PGC 030445 G [SMI2006] 16 G
SSTSL2 J102330.60+195153.4 IrS [VCV2006] J102330.6+195156 G
UZC J102330.6+195155 G [KRL2007] 087 XrayS
87GB 102046.4+200729 RadioS[GL2009] 34 G
87GB[BWE91] 1020+2007 RadioS[WMR2009] 071 G
NVSS J102330+195154 RadioS[HDM2013] 1a G
7C 1020+2006 RadioS[AHG2014] B148 G
OL +233 RadioS    
RGB J1023+198 RadioS    
RX J1023.5+1952 XrayS    
1RXS J102331.5+195143 XrayS    
1RXP J102330.2+195150 XrayS    
MAXI J1023+197 XrayS    
2PBC J1023.5+1951 XrayS    

COORDINATES for NGC 3227 (Back to INDEX)

Position Reference:2005ApJ...627..674A

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 155.1948628  20.1184251 10h20m46.7671s +20d07m06.330s  1.00E-01  1.00E-01    0
Equatorial (J2000.0) 155.8774125  19.8650500 10h23m30.5790s +19d51m54.180s  1.00E-01  1.00E-01    0
Ecliptic   (B1950.0) 149.6903974   9.1386306                              1.00E-01  1.00E-01    0
Ecliptic   (J2000.0) 150.3898226   9.1414098                              1.00E-01  1.00E-01    0
Galactic             216.9915221  55.4453753                              1.00E-01  1.00E-01    0
SuperGalactic         83.3768482 -27.6364653                              1.00E-01  1.00E-01    0
Additional detailed measurements with references are also available by clicking below:
66 Position data point(s)


8 Distances found in NED View 8 Individual Distance Measurement(s) for NGC 3227

Summary Statistics computed by NED from 8 Distance(s) in the literature:
NOTE: These summary statistics are provided for "quick-look" reference only;
they are based exclusively on original values, as published.
No homogenization or corrections have been applied.

NGC 3227 Distance Modulus
Metric Distance
Mean 31.26 18.750
Std. Dev. 0.70 6.298
Min. 30.31 11.500
Max. 32.46 31.000
Median 31.24 17.900

TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyPPPair member (points to parent)...1976RC2...C...0000d
KinematicsHI line widthHI line width...1987A&AS...69..263C
Luminosity Class1.0LC I...1991RC3.9.C...0000d
Galaxy MorphologySAB(s)a pecSAB(s)a pec...1991RC3.9.C...0000d
Activity TypeSy 2Sy 2...1974ApJ...192..581K
Distance IndicatorTully-FisherTully-Fisher...1988NBGC.C....0000T
61 Detailed Classification(s)

Galactic Extinction from the Schlafly & Finkbeiner 2011, Appendix; 2011ApJ...737..103S (SF11) recalibration 
of the Schlegel, Finkbeiner & Davis 1998, Appendix B; 1998ApJ...500..525S (SFD98) infrared-based dust map.
The map is based on dust emission from COBE/DIRBE and IRAS/ISSA;
the recalibration assumes a Fitzpatrick (1999PASP..111...63F) reddening law with Rv = 3.1 and different source spectrum than SFD98.

L a n d o l tS D S SU K I R T
Filter [µm]U (0.35)B (0.43)V (0.54)R (0.64)I (0.80)u (0.36)g (0.47)r (0.62)i (0.75)z (0.89)J (1.25)H (1.66)K (2.19)L' (3.78)
Aλ [mag]0.0980.0820.0620.0490.0340.0960.0750.0520.0380.0290.0160.0100.0070.003
Show/Hide Aλ magnitudes in all 88 photometric bands based on SF11
For completeness, we include the original SFD98 values:
L a n d o l tS D S SU K I R T
Filter [µm]U (0.34)B (0.44)V (0.54)R (0.65)I (0.81)u (0.35)g (0.49)r (0.63)i (0.78)z (0.93)J (1.27)H (1.67)K (2.22)L' (3.81)
Aλ [mag]0.1230.0980.0750.0600.0440.1170.0860.0620.0470.0330.0200.0130.0080.003

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.020 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 3227 (Back to INDEX)
Helio. Radial Velocity     :      1157 +/-        3 km/s      
Redshift                   :  0.003859 +/- 0.000010        1991RC3.9.C...0000d
Major Diameter (arcmin)    :   5.4
Minor Diameter (arcmin)    :   3.6
Magnitude and Filter       : 11.1 
Classifications            : SAB(s) pec     Sy1.5

NOTE: This information is indicative only. With the exception of the
      redshift they are unreferenced and highly inhomogeneous as to
      their origin. The Radial Velocity (when available) is computed
      from the listed redshift. The remaining values are designed to
      orient the user with a quick-look, overall assessment of the
      general properties of the object in question. They are not
      averages nor are they standardized in any way.
Additional detailed measurements with references are also available by clicking below:
48 Redshift data point(s)      350 photometric data point(s)      8 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :    1157 +/-      3 km/s      1991RC3.9.C...0000d
V (Kinematic LSR)          :    1154 +/-      3 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    1079 +/-      4 km/s      1991RC3.9.C...0000d
V (Local Group)            :    1039 +/-      8 km/s      1996AJ....111..794K
V (3K CMB)                 :    1480 +/-     23 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    1352 +/-     23 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    1477 +/-     25 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    1485 +/-     25 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    14.8 +/-    1.0 Mpc      (m-M) = 30.85 +/- 0.15 mag
D (Local Group)            :    14.2 +/-    1.0 Mpc      (m-M) = 30.77 +/- 0.15 mag
D (3K CMB)                 :    20.3 +/-    1.5 Mpc      (m-M) = 31.53 +/- 0.15 mag
D (Virgo Infall only)      :    18.5 +/-    1.3 Mpc      (m-M) = 31.34 +/- 0.15 mag
D (Virgo + GA only)        :    20.2 +/-    1.4 Mpc      (m-M) = 31.53 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    20.3 +/-    1.4 Mpc      (m-M) = 31.54 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      72 pc/arcsec =  0.072 kpc/arcsec =   4.30 kpc/arcmin =   0.26 Mpc/degree
Scale (Local Group)        :      69 pc/arcsec =  0.069 kpc/arcsec =   4.14 kpc/arcmin =   0.25 Mpc/degree
Scale (3K CMB)             :      98 pc/arcsec =  0.098 kpc/arcsec =   5.90 kpc/arcmin =   0.35 Mpc/degree
Scale (Virgo Infall only)  :      90 pc/arcsec =  0.090 kpc/arcsec =   5.39 kpc/arcmin =   0.32 Mpc/degree
Scale (Virgo + GA only)    :      98 pc/arcsec =  0.098 kpc/arcsec =   5.89 kpc/arcmin =   0.35 Mpc/degree
Scale(Virgo + GA + Shapley):      99 pc/arcsec =  0.099 kpc/arcsec =   5.92 kpc/arcmin =   0.35 Mpc/degree

To Search for Nearby Objects (Physical Companions): Enter Your Preferred Values and click on "Submit Environment Search" button
Search for Objects within +/-arcmin where 100 kpc = 16.904 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 1157 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.004937 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 20.4 Mpc (m-M) = 31.54 mag Angular-Size Distance : 20.2 Mpc (m-M) = 31.52 mag Co-Moving Radial Distance : 20.3 Mpc (m-M) = 31.53 mag Co-Moving Tangential Dist. : 20.3 Mpc (m-M) = 31.53 mag Co-Moving Volume : 3.48e-05 Gpc^3 Light Travel-Time : 0.066 Gyr Age at Redshift 0.004937 : 13.233 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 98 pc/arcsec = 0.098 kpc/arcsec = 5.86 kpc/arcmin = 0.35 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.98049; Magnitude per Unit Area = 0.02139 mag
To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities


The brightest flux in each of the following spectral regions, when available:
Gamma-Ray (ν > 2E19 Hz); X-Ray (2E19 Hz > ν > 2E16 Hz); Ultraviolet (2E16 Hz > ν > 9E14 Hz); Visual (9E14 Hz > ν > 3E14 Hz);
Near-Infrared (3E14 Hz > ν > 6E13 Hz); Mid-Infrared (6E13 Hz > ν > 7.5E12 Hz); Far-Infrared (7.5E12 Hz > ν > 1E12 Hz);
Sub-Millimeter (1E12 Hz > ν > 3E11 Hz); Millimeter (3E11 Hz > ν > 3E10 Hz); Radio (3E10 Hz > ν).

Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
Gamma-Ray14-195 keV (Swift) 14.13E-11 +/- 0.50E-11 erg/s/cm^2^ 2010ApJS..186..378T 5.94E+35 +/- 1.43E+35 [W] 1.54E+09 +/- 3.71E+08
X-Ray10-50 keV (Suzaku) 2.01 log(erg/s/cm^2^) 2011ApJ...727...19F 4.30E+35 [W] 1.12E+09
UltravioletF330W (HST/ACS) 14.05 mag 2007AJ....134..648M-17.21 [mag] 8.65E+08
VisualV (V_T) 10.28 +/- 0.20 mag 1991RC3.9.C...0000d-20.98 +/- 0.63 [mag] 1.67E+10 +/- 5.23E+09
Near-InfraredK 1 +/- 0.3 Jy 1970ApJ...161L.203K 5.72E+36 +/- 2.19E+36 [W] 1.49E+10 +/- 5.69E+09
Mid-Infrared22 microns 18 +/- 14 Jy 1970ApJ...159L.165K 1.03E+37 +/- 8.37E+36 [W] 2.68E+10 +/- 2.18E+10
Far-Infrared100 microns (IRAS) 19.11 +/- 2.00 Jy 2004AJ....127.3235S 2.41E+36 +/- 6.26E+35 [W] 6.27E+09 +/- 1.63E+09
Radio151 MHz 0.44 +/- 21.4% Jy 1996MNRAS.282..779W 2.79E+30 +/- 8.94E+29 [W] 7.27E+03 +/- 2.33E+03
NOTE: The above quantities are derived using an estimated Distance Modulus of (31.26 +/- 0.70) mag corresponding to
a Metric Distance of (18.750 +/- 6.298) Mpc using the Average NED-D value.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 350 Photometric data point(s) available in NED.


The largest diameters in the Visual and Near-Infrared spectral regions, when available:

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
POSS1 103a-O 390.00269.10155 About 25.0 B-mag arcsec^-2^ 1973UGC...C...0000N35.4524.46
K_s (LGA/2MASS "total") 365.00171.55152 Diameter for "total" magnitude 2003AJ....125..525J2003AJ....125..525J33.1815.59
NOTE: Physical diameters are derived using a scale of 0.0909 kpc/arcsec based on Average NED-D Metric Distance of (18.750 +/- 6.298) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 8 Diameter data point(s) available in NED.

Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 3227SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 3227VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 05620 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 094-028 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query UZC Spectral Archive (60 arcsec search radius)Updated Zwicky Catalog Data (Harvard/SAO)
Morphological Catalog of Galaxies -- MCG +03-27-016 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J10233060+1951538 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J1023305+195154 NASA/IPAC Infrared Science Archive (IRSA)
SDSS Sky Server
IRAS Point Source Catalog -- IRAS 10207+2007 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F10207+2007 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Catalogue of Principal Galaxies -- PGC 030445 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 030445 The Lyon/Meudon Extragalactic Database (LEDA)
NRAO/VLA Sky Survey (NVSS)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 3227GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 3227NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 10h23m30.6s, +19d51m54s (J2000)Site/Service
Query Optical and UV Mission Archives (Default search radius)Multimission Archive at STScI (MAST)
Query High Energy Mission Archives (Default search radius)HEASARC (NASA/GSFC)
SDSS Sky Server
Query IRSA for WISE images (10 arcmin search radius)NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
NASA/IPAC Infrared Science Archive (IRSA)
 Size:    Contours (PS)  JPEG  FITS File 
NRAO/VLA Sky Survey (NVSS)
The NRAO Data Archive System

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